Home / 21,432.11-32,155.86-9,584.87

Finding the Fourth Proportional to 21,432.11, 32,155.86 and 9,584.87

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Solution

The fourth proportional to 21,432.11, 32,155.86 and 9,584.87 is: 14,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.11 : 32,155.86 = 9,584.87 : x
  2. Step 2: Convert to fraction form
    21,432.11/32,155.86 = 9,584.87/x
  3. Step 3: Cross multiply
    21,432.11x = 32,155.86 × 9,584.87
  4. Step 4: Simplify right side
    21,432.11x = 308,209,737.84
  5. Step 5: Solve for x
    x = 308,209,737.84/21,432.11
  6. Step 6: Final answer
    x = 14,380.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.